Abstract
This investigation was carried out during 2015 and 2016 seasons to determine whether the selected chemical agents could be used to improve the postharvest quality of Rosa hybrida L.cv. “Black Magic” cut flowers. Freshly cut flowers were placed in glass cylinders containing 100 ml of preservative solutions [8-hydroxyquinoline sulfate (8-HQS) at 200 ppm, silver nitrate (AgNO3) at 10 ppm, Chitosan at 50, 75 or 100 ppm silver nano-particles (SN) at 5, 10 or 15 ppm, and distilled water as a control treatment].All preservative solutions and the control treatment included sucrose at 20 g/l. Compared to the control, treatments which contained of (AgNO3) or (SN) improved the quality and vase life of the flowers. They were more effective in promoting water uptake, increasing fresh weight of the flower and water balance so that the vase life of cut flowers were extended to 13.67 and 12 days during the first and second seasons, respectively. The results of bacterial count in the vase solution and the Scanning Electron Microscopy (SEM) pictures of the cut base of the stem indicated that (AgNO3) or (SN) strongly reduced bacterial population in both the vase solution and the cut stem base. The results indicated that using (AgNO3) or (SN) combined with 20 g/l sucrose could be used as a commercial cut flower preservative solution for prolonging the vase life and enhancing post-harvest quality of selected rose cut flowers.
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Claims 6
Claim · model-written summary
Silver nitrate improved the quality and vase life of cut rose flowers compared with distilled water control.
- Taxon
- Rosa hybrida
Rosa hybrid cultivare0 - Treatment
- silver nitrate (AgNO3)e1
- Outcome
- quality and vase lifee4
- Direction
- improvede4
- Comparator
- distilled water as a control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rosa hybrida”
e1“silver nitrate (AgNO3) at 10 ppm”
e2“distilled water as a control treatment”
e4“treatments which contained of (AgNO3) or (SN) improved the quality and vase life of the flowers”
Claim · model-written summary
Silver nanoparticles improved the quality and vase life of cut rose flowers compared with distilled water control.
- Taxon
- Rosa hybridaRosa hybrid cultivare0
- Treatment
- silver nano-particles (SN)e3
- Outcome
- quality and vase lifee4
- Direction
- improvede4
- Comparator
- distilled water as a control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rosa hybrida”
e3“silver nano-particles (SN) at 5, 10 or 15 ppm”
e2“distilled water as a control treatment”
e4“treatments which contained of (AgNO3) or (SN) improved the quality and vase life of the flowers”
Claim · model-written summary
Silver nitrate or silver nanoparticles extended cut rose vase life to 13.67 and 12 days in the first and second seasons.
- Taxon
- Rosa hybridaRosa hybrid cultivare0
- Treatment
- (AgNO3) or (SN)e4
- Outcome
- vase lifee5
- Direction
- extendede5
- Value
- 13.67 and 12 dayse5
- Setting
- first and second seasonse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rosa hybrida”
e4“treatments which contained of (AgNO3) or (SN) improved the quality and vase life of the flowers”
e5“the vase life of cut flowers were extended to 13.67 and 12 days during the first and second seasons”
Claim · model-written summary
Silver nitrate or silver nanoparticles were more effective than controls in promoting water uptake, fresh weight and water balance of cut roses.
- Taxon
- Rosa hybridaRosa hybrid cultivare0
- Treatment
- (AgNO3) or (SN)e4
- Outcome
- water uptake, increasing fresh weight of the flower and water balancee6
- Direction
- more effectivee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rosa hybrida”
e4“treatments which contained of (AgNO3) or (SN) improved the quality and vase life of the flowers”
e6“They were more effective in promoting water uptake, increasing fresh weight of the flower and water balance”
Claim · model-written summary
Silver nitrate or silver nanoparticles strongly reduced bacterial population in the vase solution and the cut stem base of cut roses.
- Taxon
- Rosa hybridaRosa hybrid cultivare0
- Organ / stage
- cut stem basee7
- Treatment
- (AgNO3) or (SN)e7
- Outcome
- bacterial populatione7
- Direction
- strongly reducede7
- Qualifier
- in both the vase solution and the cut stem basee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rosa hybrida”
e7“(AgNO3) or (SN) strongly reduced bacterial population in both the vase solution and the cut stem base”
Claim · model-written summary
Silver nitrate or silver nanoparticles combined with 20 g/l sucrose could be used as a commercial cut flower preservative solution.
- Taxon
- Rosa hybridaRosa hybrid cultivare0
- Treatment
- (AgNO3) or (SN) combined with 20 g/l sucrosee1
- Outcome
- commercial cut flower preservative solutione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rosa hybrida”
e1“using (AgNO3) or (SN) combined with 20 g/l sucrose could be used as a commercial cut flower preservative solution”
The same questions in other papers
silver(1+) nitrate · quality: postharvest · Rosa hybrid cultivarPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
silver nanoparticle · quality: postharvest · Rosa hybrid cultivarResults agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.